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add-app

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UpdatedMay 8, 2026 at 11:09

Adds a new application to NixOS or Home Manager configuration. Researches the package, determines the appropriate installation layer, implements it, and validates.

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Hayao0819

Hayao0819/dotfiles

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Network and Computer Systems AdministratorsComputer and Mathematical Occupations·SOC 15-1244

SKILL.md

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name	add-app
description	Adds a new application to NixOS or Home Manager configuration. Researches the package, determines the appropriate installation layer, implements it, and validates.
when_to_use	When the user asks to install, add, or set up a new application or package in their Nix configuration.
argument-hint	<app-name>
allowed-tools	WebSearch, WebFetch(domain:mynixos.com), WebFetch(domain:discourse.nixos.org), WebFetch(domain:nixos.wiki), WebFetch(domain:github.com), Bash(nix search:), Bash(nix flake check:), Read, Edit, Write, Glob, Grep

Add Application: $ARGUMENTS

1. Research

Search for "$ARGUMENTS nixos home-manager" on the web
Check https://mynixos.com for package name and available options
Determine: package name in nixpkgs, whether a Home Manager module exists, whether it needs system-level config

2. Determine Installation Layer

Category	Examples	Target
NixOS system-level	docker daemon, nvidia, bootloader	`modules/nixos/<name>/default.nix`
GUI desktop apps	Chrome, VS Code, Discord	`nixos/XPS9350/configuration.nix` → `users.users.hayao.packages`
Cross-platform CLI	ripgrep, jq, nodejs	`modules/home-manager/pkgs/global.nix`
Linux-only CLI	dconf2nix	`modules/home-manager/pkgs/linux.nix`
Configured apps	git (with config), zsh (with plugins)	`modules/home-manager/<name>/default.nix`

New modules are auto-imported via readDir — no need to edit default.nix index files.

3. Implement

Read the target file
Add package/config following existing patterns
For new modules, create modules/home-manager/<name>/default.nix or modules/nixos/<name>/default.nix

4. Validate

nix flake check --extra-experimental-features 'nix-command flakes pipe-operators'

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name	add-app
description	Adds a new application to NixOS or Home Manager configuration. Researches the package, determines the appropriate installation layer, implements it, and validates.
when_to_use	When the user asks to install, add, or set up a new application or package in their Nix configuration.
argument-hint	<app-name>
allowed-tools	WebSearch, WebFetch(domain:mynixos.com), WebFetch(domain:discourse.nixos.org), WebFetch(domain:nixos.wiki), WebFetch(domain:github.com), Bash(nix search:), Bash(nix flake check:), Read, Edit, Write, Glob, Grep

Add Application: $ARGUMENTS

1. Research

Search for "$ARGUMENTS nixos home-manager" on the web
Check https://mynixos.com for package name and available options
Determine: package name in nixpkgs, whether a Home Manager module exists, whether it needs system-level config

2. Determine Installation Layer

Category	Examples	Target
NixOS system-level	docker daemon, nvidia, bootloader	`modules/nixos/<name>/default.nix`
GUI desktop apps	Chrome, VS Code, Discord	`nixos/XPS9350/configuration.nix` → `users.users.hayao.packages`
Cross-platform CLI	ripgrep, jq, nodejs	`modules/home-manager/pkgs/global.nix`
Linux-only CLI	dconf2nix	`modules/home-manager/pkgs/linux.nix`
Configured apps	git (with config), zsh (with plugins)	`modules/home-manager/<name>/default.nix`

New modules are auto-imported via readDir — no need to edit default.nix index files.

3. Implement

Read the target file
Add package/config following existing patterns
For new modules, create modules/home-manager/<name>/default.nix or modules/nixos/<name>/default.nix

4. Validate

nix flake check --extra-experimental-features 'nix-command flakes pipe-operators'